This amulet one of the fundamental principles of the Chinese philosophy.
Yan personifies a machismo, treats active light elements of the Universe. Yin complete antithesis, dark female magic beginning. Both beginnings connect the owner with space. In each person there are contrasts. And the more balance of these forces, the is more successful the personality. The same can be told also about the relations of the man and woman.
Amulet Yin-yan helps to keep health and to increase physical and sincere forces.
Yin-Yen will help the owner to keep calm, to become wiser and to find harmony with himself and the world around, to find "golden mean".